Bottle cap, container, and other reenforced product



April 22, 1930. E. l.. GREENEWALD 1,755,597

AND OTHER REENFORCED PRODUCT BOTTLE CAP, CONTAINER I N VEN TOR.

Patented Apr. 22, 1930 EUGENE L. GREENEWALD, OF'FL'USHING, NEW YORKBOTTLE CAP, CONTAINER, AND

Application filed March 17,

skirt or flange portion for engaging the usual thread on the neck of abottle but that shall have a plain or substantially smooth outercylindrical surface to present a pleasing appearance and adapted tocarryy printing or advertising.

Other important objects of this invention are to produce doublecorrugated and reenforced Aflat and tubular multi-play material, adaptedfor use as a container wall and for numerous other purposes. y

Heretofore, deep-skirt bott-le caps or closures, such as those employedon catsup and similar bottles, have been drawn from a single metal blankor formed from two metal blanks, and the container-engaging means orthread thereof has been rolled in the skirt or ange, leaving an exteriorgroove, which is somewhat unsightly and precludes printing matter on theexterior wall of the cap or closure, such as the name of themanufacturing company, its t-rade-mark, the name ofthe product andsimilar advertising, because the drawing and threading operationsdistort printing that is applied to the flat blanks. As hereindisclosed, comparatively inexpensive closures may be made'in which suchprinting may be applied to and effectively displayed by the verticalouter surface of the closure. The tubular wall of the closure and theinterior thread thereof are greatly reenforce'd so that cheapermaterial, such as paper and thinner sheet metal, may be employed in themanufacture of the closure body withoutdetracting from itseffectiveness. The same principlesvmay of course be applied toreenforcing tubular bodies generally, and may also be OTHER REENEORCEDPRODUCT 1924. Serial No. 699,846.

web or flexible sheet mate-rial, such as paper,

fabric or thin metal, to provide single or multi-ply fiat materialhaving a permanently incorporated reenforcement, adapted vfor a varietyof purposes.

The above and other objects and the novel features of the invention willbe apparent from the following description taken in connection with thedrawing, in which Fig. 1 is a diagrammatic `view of one type ofmechanism for making products such as bottle closures or containersembodying this invention; Figs. 2 to 8 are views illustrating bottleclosures embodying this invention; Fig. 9 is a view of tubing embodyingthis invention; and Figs. 10 and 11 illustrate flat reenforced productsembodying this invention. l

The method and mechanism for making the improved products embodying thisinvention are more fully disclosed in application Serial No. 263,327,mentioned above. In the diagram of the machine in Fig. 1, the corrugatedweb-supporting surface comprises a rotatable mandrel 10 that has anexterior helical groove 11 of the same pitch as the threads of thebottles for which the closures are intended. The threaded tubular bodiesof the closures may be made on the mandrel 10 in the form of acontinuous internally threaded tube. A web 12 of paper or other suitablematerial may be drawn longitudinally from a. roll R through a suitableformer which forms the web into a tube around the mandrel in a Wellknown manner. The web 12 is of suiicient width to completely encirclethe mandrel and the edges thereof may overlap thus 'forming alongitudinally-seamed inner wall for the closure body. A spool 13 offlexible cord, wire or thread-forming member M is mounted so as to bebodily revoluble around the mandrel 10. The cord or member let is heldunder tension and laid on the web covering the mandrel as the spoolrevolves, thereby forcing portions of the plain tube into the helicalthreadgroove on the mandrel and forming a threaded tube which is fedaxially toward the right as the mandrel rotates. The inner surface ofthe web 12 may be coated with paraflin and the mandrel may be heated tosoften the paraiiin and reduce friction between the mandrel and tube asthe latter is advanced. The

mandrel is also tapered slightly toward its discharge end to lessen thetendency of the tube to stick. rlhe cord may be further pressed into thegroove by a roller 15'.

A web 16 of paper or the like feeds from the roll R through a suitableformer onto the inner tube to conceal the latter and the exteriorthreads and the cord or wire, which is preferably left in the grooveformed thereby. The cord or member 14 thus initially forms an interiorthread in the inner tube or wall and, when confined between the innerand outer walls, reenforces the multiple wall and also reenforces andsustains the interior threads of the tube and makes them more rigid anddurable.

A suitable device 17 applies adhesive material to the inner surface ofthe web 16 to unite the inner and outer tubular walls and to lill theportions of the exterior groove not occupied by the cord 14. Thelongitudinal seam of the web 16 is desirably disposed opposite to theone of the web 12. The web 16 provides a smooth outer surface for theinteriorly-threaded body and may carry printing or other decoration toenhance the appearance of the tube, closure or container made therefrom.The roll R may be printed or lithographed as desired before beingapplied to the inner wall 12. To produce a closure, a top or cover 18 ofpaper or metal may be made separately and applied at the proper timeonto the end of the tube on the mandrel, as by a cam-operated plunger 20that receives such tops from a magazine 21. After the top has beenapplied, the tube may be advanced a distance about equal to the depthbfthe closure or receptacle and then' cut oif by suitable severing meansS. More than one web may be applied to form the inner or outer walls,depending on the thickness and rigidity desired. Other types of machinesand methods for making tubing, closures or receptacles embodying thisinvention may be employed, as indicated in my aforesaid application.

A finished paper cap-is illustrated in Fig. 2. The inner wall a. has alongitudinal seam w and is threaded as at t. The cord or wire c lies inthe exterior groove of the wall a and between the latter and theexterior wall b which is plane and smooth and lithographed to advertisethe goods, as shown. The top d closes one end and has a depending fiangee that is slightly knurled and inserted or squeezed into the, outer wallb as at f. Suiicient pressure may be applied against the flange e toforce it Hush with the outer wall b.

The paper cap shown in Fig. 3 is similar in all essential respects tothe one shown in y Fig. 2, except that the strip forming the wall b isnot lithographed but instead a lithographed or printed label Z ofthesame height as the cap is pasted on the outside thereof to conceal theange e of tlie cover part and increase the thickness of the flange ofthe cap. The printing on the caps will, of course, face the samedirec-tion as the labels on the bottles to which the caps are fitted.

Figure 4 illustrates still another cap embodying my invention in whichthe flange of the top g is disposed between the inside and outside Wallsa and b, thereby forming a multiple-wall cap having a smooth exteriorsurface. Otherwise, this cap is similar to those shown in Figs. 2 and 3.In each of the caps the groove containing the cord is bridged by thewall adjacent thereto, thereby reenforcing the thread t in the innerwall. The

Vcord c may also be of slightly greater diameter than the groove andsufficiently soft to be flattened out by the wall surrounding the sameto more completely fill said groove.

Fig. 5 illustrates another form of closure or container embodying thisinvention. The body of this closure or container is formed as thosealready described and consists of two walls of paper, havingnon-coincident 9o longitudinal seams, the inner wall having an interiorthread reenforced by a winding of cord or wire that is confined betweenthe two walls.v The exterior wall is adhesively or otherwise secured tothe inner Wall and is substantially cylindrical and vsmooth and itsouter surface carries printing or other suitable decoration. The end ofthe cap or container is closed by the folded portions at the ends of thetubular body. The overlapping folded portions may be adhesively orotherwise secured together or they may be covered by an adhesivelycoated disk Ic that has printing or decorating thereon for advertising.

As illustrated in Fig. 6, the end of a body threaded according to thisinvention may also be closed by securing or crimping a metal top part toan interiorly threaded tubular paper or metal body part. In this way a11o closure or container vmay be constructed which i has a rigid metalhead m, that may be provided With a depressed center m and a knurledgripping edge m thereby providing a more rigid cylindrical structure.

In another type of closure or container shown in Figs. 7 and 8, the sametype of tubular body as shown in Fig. 9, mayr be employed and acup-shaped metal head p may be inserted in one end of the body, with itsupper edge p slightly within the upper edge of the plies of the body.Both upper edges may then be spun inwardly, causing the metal, edge togrip the upper edge of the body, as clearly shown in Fig. 8. The centralportion of the top p may be forced outwardly flush with the upper rolledge p thus produced. l l

It will be understood that the thread or bead may be rolled in 'theinner tubular body 130 a, in the known manner of rolling threads inmetal tubes. The cord, Wire or other reenforcement may then be wound orinserted in the exterior groove, after which the outer v may be cementedor otherwise secured to the apexes o'r` crests of the exterior threadson the inner wall, thereby bridging the helical exterior groove thatcorresponds to the interior helical thread, thusv forming struts whichreenforce the multiply wall of the tubular body. The principles of thisinvenltion may be applied to the manufacture-of flat'composite andreenforced web or sheet material, as illustrated in Figs. 10 and 11, forexample. The layers of flexible sheet material and the reenforcementtherebetween may be of any desired composition and, as shown, desirablycomprise an inner corrugated Ilayer a of paper, cord or metal wire c insuch corrugations and an outer layer b of flexible material, such aspaper, covering such a corrugations and the reenforcement therein.

I have also shown in Fig. 9 how tubular bodies may be helicallycorrugated or threaded andreenforced by a iexible stri or device such asa fibrous cord or meta wire e Wound helically around one wall a andcompletely confined or embedded between two Walls or plies a and b ofthe tube. Circular beads may be similarly 'formed in tubes and the likeand reenforced by the bead-forming member that is embedded or confinedin the body coextensive with the bead. In the manufacture of bottle capsand other reenforced products, the materials used for the plies and topmay be paper or any suitable fibrous material, and, for some purposes,thin metal may be employed. As indicated, paper may be employed for thebody of a cap and metal for the top; or the wall a may be of thin metalthreaded and reenforced by a light wire, while the outer wall unitedthereto may be of paper carrying printing, and a top of metal or paper,desirably also printed, lmay be secured to the body. Heavier tubing ofmetal and other materials may be reenforced by winding wire or cable ofany suitable size, helically around the outside thereof-at a suflicienttension to force such wire or cable into the exterior surface of thetube while the same is supported on and moving along anexteriorlythreaded mandrel. Such wire or cable reenforcement may beforced into the exterior wall of the tube by a pressure roller actingalone, or by both pressure roller and A tension on the cable or wire, asindicated in Fig. 1, and an outer Wallmay be united thereto `if desiredto cover the threaded body and reenfor'cement. Such circumferentiallyreenforced metal tubing is useful in the manufacture of concrete piles,and has various other uses. The methods and means herein disclosed maylikewise be employed for threading or beading tubes and rods, and, inits broader aspects, the threading or beading may be accomplished bymoving the flexible cord 0r wire and the tube or rod relatively to oneanother, either being stationary or both being movable.

In its broader sense also, the principles of this invention may beadvantageously applied to the manufacture of composite reenforced flator curved material generally, in which a layer of sheet material such asa paper,

Y fabric, or thin met-al as a web is applied onto a stationary ormovable and flat or curved corrugating support; whereupon such web iscorrugated transversely of its length to produce corrugations in both ofits faces, such web being simultaneously reenforced by permanentlydisposing a cord-like reenforcement in corrugat-ions formed in the outerface of the web. Thereupon, a Web or layer of paper or other materialmay be continuously applied to the said face and united thereto toconceal said reenforcement, further reenforc'e said material as a whole,and provide as substantially plain or smooth exterior surface thereon,which may carry printing or decorating. Such cord-like, metal wire orother reenforcement may, of course, be disposed lengthwise in part orall of the corrugations in both faces of the double-corrugated paper orsheet material layer a of Figs. 1-0 and 11, for example, to partially orentirely fill such corrugations as desired; and thereupon plain, smoothor other layersI of paper or other sheet material may be cemented orotherwise secured to the opposite corrugated faces of the layer a toconceal the reenforcements in the corrugations as well ras the latter,and further stiffen and reenforce the layer a and the resulting product.Other changes in materials and forms may be adopted'without departingfrom the principles of the Vinventions herein disclosed or sacrificingthe advantages thereof.

I claim: i l. A tubular body having corrugations extendingcircumferentially thereof, and sheet `material permanently united to-thecrests of united'to and reenforcing said corv material having itscorrugations occupied by reenforcing means and bridged by a reenforcingmember permanently united tothe crests of said corrugations.

5. A multi-ply tubular body comprising concentric plies of permanentlyunited sheet material, one of which is corrugated, and reenforcing meansin corrugations of such corrugated ply and confined between the latterand an adjacent ply.

6. A device comprising a tubular wall having a bead reenforced by awinding permanently confined between the inside and outside faces ofsaid wall and coextensive with said bead.

7 A device comprising a tubular body of paper or fibrous material havinga thread reenforced by means confined within the wall of said body.

8. A receptacle, closure or the like having a threaded tubular wallcomprising multiply fibrous material having a reenforcement embeddedtherein and coextensive with the thread on said wall.

9. A container closure having a cylindrical wall of fibrous materialformed to provide integral container-engaging means on one face of saidwall, and means embedded within said wall and reenforcing saidcontainerengaging means.

10. A receptacle, closure or the like having a tubular Wall of fibrousmaterial provided with an interior thread and a. substantially plainexterior surface adapted to carry printing.

11. A bottle cap comprising a cylindrical inner paper wall provided withan interior thread, a cylindrical outer wall of sheet materialpermanently secured to the outer side of the inner wall and reenforcingthe thread thereof.

12. A closure comprising a tubular body having an inner wall of fibrousmaterial provided with an interior helical thread and an exterior groovecorresponding to said thread, reenforcing means disposed in said groove,a wall of fibrous material secured to the outside of said inner wall tocover said groove and the reenforcing means therein; and means closingone end of said body.

13. A bottle cap comprising a cylindrical paper body part having aninner wall provided with a helical groove an interior screw thread, anda plain outer wall surrounding the screw-threaded portion of said innerwall.

and reenforcing the same, and reenforcing material confined in thehelical groove between the inner and outer walls.

14. A receptacle, closure or the like having a cylindrical multi-plybody of fibrous material provided with a reenforced screwthreadedportion.

15. A bottle vcap comprising a body having an interiorly-threadedtubular inner wall, a winding disposed in the exterior groovecorresponding to said interior thread, an outer Wall covering the'exterior surface of said inner Wall and the winding surrounding thesame, and means closing one end of the body.4

16. A bottle closure comprising a cylindrical body part having an innerWall of sheet material provided with container-engaging means and anouter wall of sheet material surrounding the inner wall and having aplain exterior surface, the inner surface of the outer wall beingpermanently united to the inner wall.

17. A bottle cap comprising a cylindrical body consisting of a pluralityof thicknesses of sheet material permanently united together,container-engaging means adjacent one end of said body, and a separatelyformed A cover part4 secured to and closing the opposite end of saidbody.

18. A bottle cap of fibrous material comprising a cylindrical innerwall'of paper or fibrous material having an interior helical thread andan exterior groove corresponding to said thread, a fibrous reenforcingmember disposed ini said groove, an outer wall of paper or fibrousmaterial secured to the outside of said inner wall and bridgingthe saidgroove therein and covering said reenforcing member whereby' said threadand the cap are 'reenforced, and fibrous means closingI one end of thebody of the cap.

19. A closure comprising an interiorly threaded self-sustaining tubularbody of fibrous material, and a separately-formed metallic top partpermanently secured to said body. i

.20. A closure comprising an interiorly threaded tubular body parthaving a top comprising inwardly-folded portions integral Elith andsubstantially closing one end of said ody.

21. A paper closure for containers comprising a skirt having asubstantially plain cylindrical exterior surface adapted tocarryprinting or advertising, and means whereby said closure may bereadily secured to and readily detached from a container.

22. A closure comprising a cylindrical body of fibrous material providedwith a reenforced screw-threaded portion and also having a top partsecured to said body and provided with a corrugated portion forming agrip on said closure.

23. A. closure for containers having a top and a depending threaded.skirt and carrying printing or advertising on the exterior surfaces ofboth the top and skirt.

24. An internally threaded bottle cap having a plain cylindricalexterior surface car- 'rying printing or advertising.

25. A composite body comprising a corrugated layerof sheet material,reenforcing means in corrugations of said layer, and a layer of sheetmaterial secured to said corrugated layer and covering said reenforcingmeans.

26. A composite. body comprising a corrugated layer of flexiblematerial, cord like reenforcing means in corrugations of said layer. anda layer of flexible material secured to said corrugated layer andcovering said reenforcing means.

27. A composite body comprising a corrugated layer of paper, flexiblereenforcing means in the corrugations of said layer` and a layer offibrous material secured to said corrugated layer and concealing saidreenforcing means.l

28. A composite'body comprising a layer of corrugated paper. fibrousreenforcing means in the corrugations of said layer, and a layer ofpaper secured to such corrugated layer and concealing said reenforeingmeans.

29. A colnposite tubular body comprising a helically corrugated layer ofsheet material, reenforcing means extending helically of said body anddisposed in such helical corrugation, and a layer of sheet materialsecured to said corrugated layer and covering said reenforcing means.

. '30. A composite tubular body comprising a helically corrugated layerof paper, a fibrous cord extending helically of said body and disposedin such helical eorrugation, and a layer of paper secured to saidcorrugated layer and covering said cord.

31. A closure or receptacle comprising a tubular body consisting of ahelically corrugated layer of sheet material, a cord-like reenforcingmember disposed in such helical corrugation, and a layer of sheetmaterial secured to said corrugated layer and covering said reenforcingmember.

32. A reenforced product comprising a layer of flexible sheet materialcorrugated to provide corrugations in both of its faces. and cord-likereenforceme'ntmeans disposed in and extending lengthwise of thecorrugations in one of said faces.

33. A reenforced product comprising a layer of sheet material corrugatedto provide corrugations in both of its faces, and cord-likereenforcement means disposed in and extending lengthwise of corrugationsin both of said faces.

34. A reenforced product comprising layer of sheet material corrugatedto provide corrugations in both of said faces, reenforcements in saidcorrugations and layers of sheet material secured to the opposite facesof such corrugated layer to conceal such reenforcements and furtherreenforce said product.

35. A reenforced product comprising a layer of paper corrugated toprovide corrugations in both of its faces, cord-like reenforcement meansdisposed in and extending lengthwise of corrugations in both of saidfaces, and layers of sheet material secured to the opposite faces ofsuch corrugated layer to conceal such reenforcements and furtherreenforce said product, l

36. A composite reenforced product comprising a layer of sheet materialcorrugated to provide corrugations in both of its faces, a layer ofsheet material permanently secured to one face of said corrugated layer,and reenforcing means disposed in the corrugations of said face betweensaid layers.

3T. A composite reenforced product comprising a corrugated layer ofsheet material having corrugations in both of its faces, a

plain layer of sheet material secured to oneface of said corrugatedlayer, and strip reenforcing means disposed in the corrugations of saidface between said layers.

38. A composite reenforced product comprising a corrugated layer ofpaper having corrugations in both of its faces, a plain layer of papersecu-red to one face of said corrugated layer, and cord-like reenforcingmeans disposed in the corrugations of said face between said layers.I

39. A composite reenforced product comprising a layer of sheet materialcorrugated to provide corrugations in bot-h of its faces, reenforcingwires disposed in and extending lengthwise of corrugations in at leastone of said faces, and layers of sheet material se cured to the oppositefaces of such corrugated layer to conceal such wires and further re-'enforce said product.

40. A container closure having a skirt comprising a substantially plainexterior surface carrying printing or advertising, and means on saidclosure for coupling the same to a container.

41. A sheet of material having corrugations in its opposite faces, andcord-like means disposed in and extending lengthwise of corrugations inboth faces to reenforce said sheet.

42. A sheet of paper having corrugations in its opposite faces, andcord-like means disposed in and extending lengthwise of corrugations inboth of said faces to reenforce said sheet.

43. A container closure having a skirt comprising a substantially plaincylindrical exterior surface carrying undistorted printing. said closurebeing readily attachable to and readily detachable from a container, andsuch printing being `visible when said closure is attached to acontainer.

In testimony whereof, I afhx my signature.

EUGENE L. GREENEVVALD.

